KR20100094163A - Air conditioning system for subway station - Google Patents

Abstract

PURPOSE: An air conditioning system for a subway station is provided to reduce the consumption of the power used for cooling air in summer by natural cooling using evaporation heat. CONSTITUTION: An air conditioning system for a subway station ventilates the external air flowing into from an outdoor air intake(20) and supplies cold air to each function room including a waiting room, a platform, and a station office through a duct(27) via a freezer, a cooling tower, an air conditioner, a cold water pump and a cooling water pump. A cooling pad device(30) absorbs and cools the heat of the hot air flowing into the outdoor air intake through the evaporation of the moisture contained in a water layer. The air cooled through the cooling pad device is sucked through an air conditioner(23) and is supplied to each function room of a subway station through the duct. The cooling pad device is composed of a body, a casing, a water jacket, and a drain jacket. The casing accepts the body. The water jacket wets the cooling pad by making cooling water flow to the body. The drain jacket makes the water generated through the heat exchange of the cooling water remaining after wetting the cooling pad, with the hot air supplied through the outdoor air intake, flow.

Description

Underground station air conditioning system {AIR CONDITIONING SYSTEM FOR SUBWAY STATION}

The present invention relates to an air conditioning system installed in underground stations, large buildings, and the like, and more particularly, to reduce power consumption of summer air-conditioning equipment in general buildings to which underground stations and central air conditioning systems are applied, and to obtain high temperature and high humidity indoor air. The present invention relates to an air conditioning system for effectively dehumidifying and removing unpleasant feelings of in-home occupants and users and removing and cleaning fine dust, bacteria, viruses, odors, and harmful gases directly from outside.

Recently, the research on building construction has introduced a variety of eco-friendly technologies, such as high efficiency, energy saving, efficient resource utilization, and pollution emission reduction technology.

The air conditioning system has become an essential facility for the construction of such eco-friendly buildings. In particular, air conditioning and purification in underground stations where indoor air pollutants such as fine dust, yellow dust, dust, automobile exhaust gas, odors and bacteria are frequently formed are directly related to the creation and maintenance of a pleasant indoor environment and to the health of users. More important than any facility.

Summarizing the basics of energy-saving plans in buildings is the control of loads, the establishment of appropriate indoor environmental conditions, the use of natural energy, the utilization of arrayed and unused energy, the application of high-efficiency system equipment and the prevention of waste and over-operation. Among them, the application of technology and environment-friendly technology to the air conditioning system, which is a mechanical facility that occupies more than 25-30% of general buildings, is required.However, the excess capacity is set based on the central air conditioning system used in most buildings. It is trying to improve the operation efficiency of equipment by constructing the optimization system such as prevention, adoption of high efficiency equipment, proper division of heat source equipment, and prevention of overheating and supercooling by high efficiency operation and automatic control.

The causes of indoor air pollution can be classified into the effects of indoor pollutants, air pollution from industrialization and urbanization, and pollutants emitted from new building materials.

Control of air pollutants has been focused on technology development. However, since there is a limit to natural purification, it generally depends on the central air conditioning system, which is an artificial mechanical facility, and accordingly, the central air conditioning system consists of energy saving and high efficiency system. This is required.

On the other hand, when the ventilation of the conventional underground station and the supply of heating and cooling air will be described, as shown in FIG. 1, the air conditioner 10, the refrigerator 11, the pump 12, the cooling tower 17, etc. are installed in the machine room. 13) Ventilation and cooling and heating air are supplied to each functional room such as the platform 14, the station room, etc. through the duct 15, and the cooling of the underground station in the summer is carried out by the air conditioner 10 through the outdoor air inlet 18. The outside air is introduced into the room and supplied to the room, and the cold water coil 16 installed in the air conditioner 10 receives the cold water from the freezer 11 to cool the introduced air and supplies it to each functional room, and an exhaust port ( 18) the indoor air of each function room is discharged and ventilated.

Referring to the conventional air conditioning system cooling cycle for cooling the underground station history and supplying cooling air in summer, the conventional underground station summer cooling system, the first cooling water circulation system circulating between the cooling tower 17 and the refrigerator 11 is a cooling tower ( The low temperature coolant comes out from 17) to exchange heat in the freezer 11, and the freezer 11 absorbs heat from the secondary coolant circulation system by its own cooling system to transfer heat to the primary coolant circulation system. As a result, the primary cooling water circulation system absorbs heat from the secondary cooling water circulation system and becomes a high temperature cooling water to enter the cooling tower 17.

The secondary cooling water circulation system is connected to the air conditioner 10 which is connected to the inside of the underground station by ducts and supplies cooling air, and the secondary cooling water discharges heat through heat exchange while passing through the freezer 11. The low temperature cooling water becomes heat exchange with the air passing through the air conditioner 10.

The air conditioner 10 receives the outside air through the outside air inlet 18 to exchange heat with the coolant at low temperature in the heat exchanger to lower the temperature of the outside air into the cooling air, and the coolant removes the heat released from the air. Absorb to hot coolant.

However, the summer cooling of the conventional underground station is to operate the air conditioner 10, the freezer 11, the pump 12, etc. in each machine room to perform the cooling in the history, these air conditioning equipment installation costs Due to this high power consumption, frequent repairs, and regular maintenance, excessive maintenance costs are incurred.There is no filtration device on the air supply side that introduces outside air, and air pollutants enter the room without filtration. There was a problem, which will be described in detail as follows.

Turbo refrigerator 11, which is one of the facilities for cooling underground stations, usually consumes more than 200 to 350 kW / h, and consumes excessive power by additionally operating the cooling tower 17 or the pump 12. There was a problem.

The filter and air filter using the demister or electrostatic filter are mainly used as the filtration device of the air conditioner 10, but the removal performance of fine dust, odors and bacteria is low, and the difficulty of maintenance due to frequent clogging phenomenon. There were many problems.

      Therefore, the present invention was created in view of the above circumstances, and is installed at the outside air inlet of the underground station in the summer cooling of the underground station, and reduces the excessive power consumption required for cooling the summer through natural cooling using evaporative heat and at the same time fine dust It is to provide an underground air conditioning system capable of removing, antibacterial, deodorizing and dehumidifying functions.

      Another object of the present invention is to provide an air conditioning system capable of supplying natural cooling air in a relatively simple operation without changing the structure of the entire air conditioning system installed in the underground station.

      It is still another object of the present invention to provide an air conditioning system that enables the cooling of underground stations at low cost by minimizing the scale of excessive cooling equipment.

      Still another object of the present invention is to create a pleasant indoor environment by removing the contaminants introduced through the outside air inlet of underground stations by the self-purifying function of the cooling pad using evaporative heat.

      Underground station air conditioning system according to the present invention for achieving this object,

The outside air inlet and the outside air introduced from the outside air inlet are provided with a refrigerator, a cooling tower, an air conditioner, a cold water pump, and a cooling water pump to provide a duct to each functional room requiring cooling air supply, including a waiting room, a platform and a service room. In the underground air conditioning system that supplies ventilation and cooling and heating air through

Install a cooling pad device for absorbing the heat of the hot air through the evaporation of moisture contained in the water film to the hot air flowing into the outside air inlet to introduce the cooled air,

The cooling air cooled by passing through the cooling pad device is sucked through an air conditioner while suppressing the operation of a separate cooling facility, and supplying cooling air to each functional room of the underground station through a duct.

The cooling pad device, the cooling pad body,

A casing accommodating the cooling pad body;

A water jacket installed on an upper side of the casing to flow cooling water to the cooling pad body to wet the cooling pad;

It characterized in that it consists of a drain jacket installed in the lower portion of the casing to wet the cooling pad body and to recover the flow of water generated by heat exchange with the remaining cooling water and the hot air supplied through the outside air inlet.

The cooling pad body,

It is characterized in that the pulp material having a high water absorption capacity is composed of continuous waveforms, and the waveform pulp material is arranged in layers.

On the front and rear surfaces of the cooling pad body, an activated carbon block having a breathable air flow port is installed to freely flow the air to control the humidity of the introduced air, and to pass through the cooling pad by antibacterial and deodorizing externally introduced air. do.

The cooling pad body is configured to dehumidify and deodorize the external introduced air by combining a carbon block having a breathable air flow port so that air flow is free.

It is characterized in that the cooling angle of the cooling pad body to 30 ~ 45 ° to induce the impact of the external introduced air to increase the cooling and filtration efficiency.

And a recycling apparatus for supplying the water recovered by the drain jacket back to the water jacket through a circulation pump.

      The present invention provides an underground air conditioning system capable of removing fine dust, antibacterial, deodorizing, and dehumidifying functions while reducing excessive power consumption for summer cooling through natural cooling using evaporative heat in summer cooling of underground stations. It can be effective. In addition, there is an effect that can provide an air conditioning system capable of supplying natural cooling air in a relatively simple operation without changing the structure of the entire air conditioning system installed in the underground station. In addition, by minimizing the size of the excessive cooling facilities, it is possible to cool underground stations at low power and low cost.In addition, the contaminants introduced through the outside air inlet of underground stations are removed by the self-purifying function of the cooling pad using evaporative heat to provide a pleasant interior. It has the effect of creating an environment.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

      1 is an explanatory diagram of a cooling method of a general underground station. Figure 2 is an explanatory diagram of the cooling method of the underground station according to an embodiment of the present invention. Figure 3 is a schematic diagram showing the main part of the cooling method of the underground station according to an embodiment of the present invention. 4 is a detailed view of a heat exchange part by a cooling pad device according to an embodiment of the present invention. 5 is a partial detailed view of a cooling pad device according to an embodiment of the present invention.

     In the underground air conditioning system according to an embodiment of the present invention, as shown in FIG. 2, the outdoor air inlet 20 for introducing outside air in the atmosphere and the outside air introduced from the outside air inlet 20 are provided with a freezer ( 21), a cooling tower 22, an air conditioner 23, and a pump 24 are installed to provide a duct in each functional room that requires air supply of cooling air, including a waiting room 25, a platform 26, and a working room 29. It consists of an air conditioning system in underground stations that supplies ventilation and cooling air through (27).

The main part of the present invention, as shown in Figure 3, by absorbing the heat of the hot air (A) through the evaporation of water contained in the water film of the hot air flowing from the outside on the passage of the outside air inlet 20 is cooled It is made by installing a cooling pad device (30) for introducing the air into the air conditioner (23), and the cooling air (B) cooled through the cooling pad device 30 to suppress the operation of a separate cooling facility In the state, it is sucked through the air conditioner 23 and is supplied to each functional chamber of the underground station through the duct 27, the air of the functional chamber is configured to be discharged through the exhaust port (28).

As shown in FIG. 4, the cooling pad device 30 includes a cooling pad body 31, a casing 32 for accommodating the cooling pad body 31, and a cooling water flow through the cooling pad body 31. In order to wet the internal cooling pad body 31, the water jacket 33 installed on the upper side of the casing 32, the cooling pad main body 31, and the remaining residual coolant and the external air inlet 20 are wetted. It characterized in that it consists of a drain jacket 34 installed in the lower portion of the casing 32 in order to recover the flowing water generated by heat exchange with the hot air supplied through.

As shown in FIG. 5, the cooling pad main body 31 may be configured by forming a continuous waveform 35 of a pulp material having a high water absorption ability and layering the waveform pulp material.

In addition, on the front and rear surfaces of the cooling pad main body 31, an activated carbon block 40 having a breathable air flow port is installed to control the humidity of the introduced air to control the humidity of the introduced air, and the antibacterial and deodorized external introduced air to the cooling pad. It can be configured to pass through the main body 31.

In addition, the cooling pad body 31 may be configured to dehumidify and deodorize the external introduced air by combining a carbon block 41 having a breathable air flow port so that air flow is free.

The corrugated angle of the pulp material constituting the cooling pad body 31 may be configured to increase the cooling and filtration efficiency by inducing collision of external introduced air by setting the wave angle of 30 to 45 °, and the above angle is defined or prescribed. It can be freely selected on any angle range. In addition, the cooling pad body 31 may apply a honeycomb structure in addition to the wave shape. In addition, the wave shape can be freely designed and applied in the longitudinal or transverse direction according to the flow of the air.

In addition, the cooling pad device 30 may include a recycling device for supplying the water recovered by the drain jacket 34 back to the water jacket 33 through the circulation pump 42, and alternatively separate groundwater It is also possible to supply cooling water by flowing in.

     Referring to the operation of the air conditioning system of the underground station according to the present invention configured as described above are as follows.

    The present invention is to install a cooling pad device 30 on the outside air inlet 20 side in the summer cooling the underground station to change the hot air (A) to cold cooling air (B) to supply to the air conditioner (23). .

     The cooling pad device 30 primarily converts the hot air (A) introduced through the outside air inlet 20 into cold cooling air (B). The energy consumption can be reduced by reducing the operating hours of cooling equipment such as the refrigerator 21, the cooling tower 22, and the pump 24, which are essential equipment in the underground air conditioning system, and at the same time, fine dust and bacteria introduced into the outside air are introduced. Removes viruses, odors and harmful gases and supplies them to the air conditioner (23).

That is, the cooling pad device 30 absorbs the heat of the hot air A through the evaporation of moisture contained in the water film and the hot air from the outside on the passage of the outside air inlet 20. The air conditioner 23 is introduced into the air conditioner 23, and the cooling air B cooled by passing through the cooling pad device 30 is sucked through the air conditioner 23 in a state in which a separate cooling facility is operated. ) Is supplied to each functional room of the underground station and discharged through the exhaust port 28.

As shown in FIG. 4, the cooling pad device 30 is provided with a water jacket 33 on the cooling pad main body 31 and flows cooling water to wet the cooling pad main body 31 to heat the hot air A to evaporate heat of the cooling water. By the cold cooling air (B).

The cooling pad device 30 applied in the present invention is similar to the walker curtain cooling and ventilation system method which is generally applied. In general, the cooling by the water curtain is installed in a building where high temperature, odor, smoke, and dust are generated. By ventilating and cooling, it makes a working space more comfortable. In general, the water curtain is a natural phenomenon that takes away the ambient temperature when the water evaporates. When the outside hot air passes through the water curtain, the moisture contained in the water film evaporates and absorbs the heat of the hot air to bring the cool air into the room. Inflow.

The cooling pad device 30 according to the present invention applies the heat exchange principle of the hot air by the water curtain to the outside air inlet 20 of the underground station to reduce the power consumption by reducing the operating time of various cooling facilities.

When the water jacket 33 installed on the casing 32 upper side of the cooling pad device 30 is installed, the cooling water of the water jacket 33 wets the cooling pad body 31 and is supplied through the outdoor air inlet 20. The heat generated by heat exchange with the hot air is flowed to the drain jacket 34 in a natural dropping manner is recovered.

The cooling pad body 31 may be formed by forming a continuous wave 35 of pulp material having a high water absorption ability, and layering the wave pulp material in a layered manner. The density of the material can be adjusted appropriately.

By installing an activated carbon block 40 having a breathable air flow port so that air flows freely on the front and rear surfaces of the cooling pad main body 31, the humidity of the air flowing from the outside air inlet 20 can be controlled and introduced outside. The antibacterial and deodorization of the air is possible, and the carbon pad 41 having a breathable air flow port can be dehumidified and deodorized by combining the cooling block body 31 with the air flow port so that the air flow is free.

      Accordingly, the present invention by installing a cooling pad device 30 in the outdoor air inlet 20 of the underground station in the summer cooling of the underground station by inducing natural cooling using evaporative heat to reduce the excessive power consumption required for the summer cooling at the same time fine Dust removal, antibacterial, deodorization, dehumidification function. In addition, it is possible to provide an air conditioning system capable of supplying natural cooling air with a relatively simple operation without changing the structure of the entire air conditioning system installed in the underground station, and to minimize the size of excessive cooling facilities to cool the underground station at low cost. It can be possible, by removing the contaminants introduced through the outdoor air inlet 20 of the underground station by the self-purifying function of the cooling pad device 30 using evaporative heat to create a comfortable indoor environment.

While the invention has been described in connection with the preferred embodiments, it will be readily apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, and all such changes and modifications are set forth in the claims. Belongs to the range.

1 is a diagram illustrating a cooling method of a general underground station.

Figure 2 is an explanatory diagram of the cooling method of the underground station according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing the main part of the cooling method of underground history according to an embodiment of the present invention.

Figure 4 is a detailed view of the heat exchange portion by the cooling pad device according to an embodiment of the present invention.

5 is a partial detailed view of a cooling pad device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

20: entrance to the open air

21: freezer

22: cooling tower

23: air conditioner

24: pump

25: waiting room

26: platform

27: duct

28: outlet

30: cooling pad device

31: cooling pad body

32: casing

33: water jacket

34: Drain jacket

35; Waveform

40: activated carbon block

41: carbon block

Claims (6)

The outside air inlet and the outside air introduced from the outside air inlet are provided with a refrigerator, a cooling tower, an air conditioner, a cold water pump, and a cooling water pump to provide a duct to each functional room requiring cooling air supply, including a waiting room, a platform and a service room. In the underground air conditioning system that supplies ventilation and cooling and heating air through Install a cooling pad device for absorbing the heat of the hot air through the evaporation of moisture contained in the water film to the hot air flowing into the outside air inlet to introduce the cooled air, And cooling air cooled by passing through the cooling pad device through an air conditioner, and supplying cooling air to each functional room of the underground station through a duct.       The method of claim 1, The cooling pad device, the cooling pad body, A casing accommodating the cooling pad body; A water jacket installed on an upper side of the casing to flow cooling water to the cooling pad body to wet the cooling pad;       An underground station comprising a drain jacket installed at the lower portion of the casing to wet the cooling pad body and recover the remaining residual cooling water and the water generated by heat exchange with the hot air supplied through the outside air inlet to recover the flowing water; Air conditioning system.       The method of claim 2, The cooling pad main body is composed of a pulp material having a high water absorption capacity in a continuous wave form, and the corrugated pulp material is arranged in a layered structure, the air conditioning system for underground stations.       Following the claim 2,      On the front and rear surfaces of the cooling pad body, an activated carbon block having a breathable air flow port is installed to freely flow the air to control the humidity of the introduced air, and to pass through the cooling pad by antibacterial and deodorizing externally introduced air. Underground station air conditioning system.       The method of claim 2,      The air conditioning system of the underground station, characterized in that the cooling pad body is configured to dehumidify and deodorize the outside introduced air by combining a carbon block having a breathable air flow port so that air flow is free.       The method of claim 2,      And a recycling apparatus for supplying the water recovered by the drain jacket back to the water jacket through a circulation pump.

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